C1111121111331311211331333133313331323132322331323133313231333133313121123231   >>    C111112111133131121133133313331333132313232233132313331323133313331312112323   <<    C1111121111331311211331333133313331323132322331323133313231333133313121123233   >>      C1111121111331311211331333133313331323132322331323133313231333133313121123232   >>